Finding the Fourth Proportional to 7,129,568, 9,838,808.64 and 3,866,381.72
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Solution
The fourth proportional to 7,129,568, 9,838,808.64 and 3,866,381.72 is: 5,335,609.38
Step by Step Solution
- Step 1: Write the proportion equation
7,129,568 : 9,838,808.64 = 3,866,381.72 : x - Step 2: Convert to fraction form
7,129,568/9,838,808.64 = 3,866,381.72/x - Step 3: Cross multiply
7,129,568x = 9,838,808.64 × 3,866,381.72 - Step 4: Simplify right side
7,129,568x = 38,040,589,872,274.06 - Step 5: Solve for x
x = 38,040,589,872,274.06/7,129,568 - Step 6: Final answer
x = 5,335,609.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.